希荻微电子集团股份有限公司关于变更签字会计师的公告

Group 1 - The company has appointed Chen Lijun as the new signing auditor to replace Pan Jiaheng due to personal work changes, while Li Xinhang remains the project partner [1][2] - Chen Lijun has been a certified public accountant since 2003 and has been involved in auditing listed companies since 2013, with no criminal or administrative penalties in the last three years [2][3] - The transition of responsibilities during the change of signing auditor has been orderly, and it will not adversely affect the company's 2025 financial report audit and internal control audit [5] Group 2 - The company plans to acquire 100% of Shenzhen Chengxin Micro Technology Co., Ltd. through cash payment, having previously considered a share issuance and cash payment method [8] - The company has withdrawn the previous plan for share issuance and cash payment for the acquisition, and the Shanghai Stock Exchange has terminated its review of this matter [8] - The company conducted a self-examination of stock trading by insiders related to the transaction, confirming that no insider trading occurred during the self-examination period [11][17]